POMPEII - A FORGOTTEN LESSON
Although most molten rock cools inside the Earth,
sometimes it erupts on the surface creating a volcano. Some molten rock
erupts out onto the Earth’s surface as a fluid lava flow. In other
instances, it explodes out of the ground, making pyroclastic
material.
Volcanic eruptions, especially explosive
ones, can be dangerous. Large amounts of pyroclastic material can shoot
out of the volcano with virtually no warning. When this hot rock lands
on the surface, it can bury fields, crush houses and cars, and burn and
suffocate people and other living things.
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